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Amazing to see this system work.


Print out the invoice, and then send it with a check for $24 and letter requiring them process the check against invoice to their legal department via certified USPS letter.


The article talks about a similar device developed by Cal Poly in 2015: https://solar.lowtechmagazine.com/2023/08/direct-solar-power...


According to Marketplace.org, pennies are treasure for some businesses now because the regional Feds aren't distributing them.

https://www.marketplace.org/story/2025/11/13/businesses-face...


I've been listening to Marketplace less because of stories like this. The half cent went away, the penny went away, other countries have discontinued currencies. You keep accepting pennies and you round when people pay in cash. At some point, your register will do the rounding for you. There isn't really a story here.


The register might already do the rounding if it was designed to work in Canada, which got rid of the penny over a decade ago.


There's a bunch of regulations that need tweaking. AIUI, it's illegal to charge SNAP more than other customers. someone who paid cash and gets rounded down technically pays less than what the government got charged. It's only on the order of pennies, I don't think the law cares about that at all.


That one is easy without regulatory changes: just round the SNAP transactions. The SNAP equal treatment rule only requires charging SNAP customers the same price as cash purchases, not the same price as credit or debit card purchases.


Is that a federal law or state law? Whichever jurisdiction it is, surely you'd only need a one-clause amendment to add an exception for rounding cash transactions by up to two cents to account for the discontinuation of pennies... I just can't imagine that taking more than a few weeks to resolve, surely your political systems in the US haven't become that dysfunctional where this couldn't be fixed that quickly?


> surely your political systems in the US haven't become that dysfunctional where this couldn't be fixed that quickly?

In America this can be done - by 2028 or thereabouts :)


I don't buy the SNAP argument because there's already rounding when taxes are applied, and half cents are still legal tender, so you could go into a store, tell them they should have charged half a cent less, and then they'd be in a similar trivial violation of SNAP.


Yeah this is the kind of objection dreamed up by an engineer, who thinks that law is mechanically applied. In reality, if there are no other factors this spends two seconds in front of a judge, who then throws it out with prejudice for wasting the court’s time.


> You see, unlike Debian or other standard OS, Raspberry Pi OS (which I still call Raspbian in my head and likely use in this article multiple times) is designed to be flashed to the SD card directly and doesn’t actually have an installer that can be booted from USB

https://github.com/gitbls/sdm

can help with this issue.


MathWorks has a press piece that has technical details.

https://www.mathworks.com/company/mathworks-stories/signal-p...


How do you tell the difference between benign Seborrheic Keratosis and melanoma? Some of them are very similar!


I had a similar experience. We're mostly Apple at home, but I bought an X1 Carbon reburb from MicroCenter a few years ago to run desktop Linux. It's become one of my favorite pieces of tech. Ultra-light but solid with a nice-feeling keyboard and trackpad.


Is there any way to contribute levels to Tuxracer these days? I made a pair of really long ones (~10 min and ~20 min)


MIT and their /8?


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